Think of an open social network as similar to a public square. This is a place where everyone—member, non-member, affiliated, unaffiliated—can gather together. In contrast, a private social network—frequently called a “walled garden”—is only made available to authorized individuals. Both types serve beneficial purposes.
This paper focuses on such aspects of Facebook as:

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Going Outside the Church Walls
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NEC Display Solutions for Houses of Worship
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Why Facebook and Other Social Networks May Not Work for Your Church
Preparing for the Unthinkable: Violence in the Church
Planning for Big Success with Small Groups
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Changing Metrics: The Benefits of Measuring Devotion and Obedience, Not Just Numbers
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